To fix a water meter connection leakage, first shut off the main water supply. Use a wrench to loosen the meter's union or saddle, then disconnect the meter. Inspect the pipes and meter for corrosion, cracks, or loose fittings. Clean any debris from the meter's inlet and outlet. Apply pipe dope or thread sealant to reattach the meter, ensuring a tight seal. Tighten connections gradually to avoid overtightening. Test for leaks by turning the water supply back on and checking for drips. If the meter itself is damaged, contact a licensed plumber for replacement.

The primary causes of water meter connection leaks include aging infrastructure, corrosion, and improper installation. Corrosion of metal pipes or the meter's internal components is a leading factor, as water exposure over time erodes protective coatings. A 2021 study by the American Water Works Association (AWWA) found that 30% of water meter failures in the U.S. were due to corrosion-related leaks. Additionally, loose or incorrectly sealed unions between the meter and service line allow water to escape. The EPA estimates that household water leaks account for 10% of total water usage, with meter connections contributing significantly to this waste. Regular maintenance, such as annual inspections and using thread sealants, can reduce leakage risks by up to 40%, as reported by the Water Research Foundation in 2020. Addressing these issues promptly saves water, lowers utility bills, and prevents property damage.